Your Humminbird unit is designed to provide years of trouble free operation with virtually no maintenance.  Follow these simple procedures to ensure your Humminbird continues to deliver top performance.

  • If the unit comes into contact with salt spray simply wipe the affected surfaces with a cloth dampened in fresh water.
  • Do not spray wash your Humminbird or run through a car wash 
  • Do not use a commercial chemical glass cleaner on the lens. Chemicals in the solution may cause cracking in the lens of the unit.
  • When cleaning the LCD protective lens, we recommend that your first use a solution of warm mild soapy water (like a non-abrasive liquid hand soap), wipe the face dry and if water spots remain, use a solution of water and vinegar.  Always use a soft cloth.
  • Do not wipe while dirt or grease on the lens. Be careful to avoid scratching the lens.  
  • Chemicals like sunscreen and bug spray can cause permanent damage to the special coatings on your protective lens.  This is not covered by warranty.   
  • If your boat remains in the water for long periods of time, algae and other marine growth can reduce the effectiveness of the transducer. Periodically clean the face of the transducer with liquid detergent. Pivoting the transducer up in the bracket may allow better access for inspection or cleaning. 
  • If your boat remains out of the water for a long period of time, it may take some time to wet the transducer when returned to the water. Small air bubbles can climb to the surface of the transducer  and interfere with proper operation. These bubbles dissipate with time, or you can wipe the face of  the transducer with your fingers after the transducer is in the water. 
  • NEVER leave your unit in a closed vehicle or trunk - the extremely high temperatures generated in hot weather can damage to the electronics.